DOUBLE-LAYERED MEMORY FOAM: A 2.5-inch, gel-infused memory foam layer rests over a high-density foam base, distributing body heat for a cool and comfortable sleep STAY COOL: Unnecessary nighttime sweats aren't an issue, as open cell technology keeps the mattress cool while the memory foam captures and dissipates heat CERTIFIED QUALITY: Foam meets CertiPUR-US standards for content, emissions, and durability, and are analyzed by independent, accredited testing laboratories DURABLE MATTRESS DESIGN: Medium-firm mattress is designed with high-density, polyurethane foam and a removable poly-cotton cover for easy washing EASY SETUP: Simply let it expand for up to 48 hours to let any potential odors dissipate so you can start relaxing If you are a resident in California, Connecticut, or Rhode Island, your state requires a mattress recycling fee upon purchasing a mattress. Learn more here: Help Center